It's removed for users in China (1) Nota bene: Zoom in China has now been somewhat separated from global Zoom (2), and is now hosted in China. Haven't been on a call with anyone over Zoom in China for a while. I don't think that people in China using Zoom are always able to join Zoom calls elsewhere. Will be verifying this shortly. For me, the only thing that always works to China is Wechat (Weixin) (I'm careful as to what I say on it).

(1) https://www.businessinsider.com/coronavirus-covid-19-spread-...

(2) https://technode.com/2019/09/19/chinas-zoom-users-switch-to-...